Issue trying to enable Pi-hole's DHCP

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Expected Behaviour:

Settings should be applied so I could use Pi-holes’s DHCP

Actual Behaviour:

I get this error on every page of settings after trying to enable Pi-hole’s DHCP
There was a problem applying your settings.
Debugging information:
PHP error (2): fopen(/etc/pihole/adlists.list): failed to open stream: No such file or directory in /var/www/html/admin/scripts/pi-hole/php/savesettings.php:163

Debug Token:

https://tricorder.pi-hole.net/jrxmoosvuw